#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
char* getm()
{
	char* p = (char*)malloc(100);
	return p;
}
void test(void)
{
	char* str =NULL;
	str = getm();
	strcpy(str, "hello world");
	printf(str);
	free(str);
	str = NULL;
}
int main()
{
	printf("hehe\n");
	printf("hehe\n");
	test();
	return 0;
}